Finished Solid Ground Carbide Rods 8% Cobalt Kic 9.6 For Making PCB Drills

Brand Name:OUQI
Certification:ISO9001:2008 ISO14001:2004
Model Number:Ground carbide rods
Minimum Order Quantity:10pc
Delivery Time:Standard products in one week
Payment Terms:L/C, D/A, D/P, T/T, Western Union, MoneyGram
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Location: Zhuzhou Hunan China
Address: Block B, building 4, Area B, Hi Tech New Makin Valley Xiangyuehuan Road, Tianyuan District, Zhuzhou, Hunan, China
Supplier`s last login times: within 2 hours
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Product Details

8% Cobalt finished ground carbide rods for making micro pcb drills with Kic 9.6


Diameter 0.5mm h6 -0.008mm

Length: 100mm

Surface roughness Ra 0.2

Application: with high hardness 92, good for micro PCB drills


ClassificationK20
Co %8
WC incl. doping92
Density g/ cm314.6
Hardness HV301790
Fracture toughness9.6
Transverse rupture strength3700
Average grain size0.6



Regular size for ground carbide rods:


Diameter (mm)Length (mm)Diameter (mm)Length (mm)
DToleranceLengthTol.DToleranceLengthTol.
1.00+0/-0.0063300/+0.510.50+0/-0.0113300/+0.5
1.503300/+0.511.003300/+0.5
2.003300/+0.511.503300/+0.5
2.503300/+0.512.003300/+0.5
3.003300/+0.512.503300/+0.5
3.503300/+0.513.003300/+0.5
4.003300/+0.513.503300/+0.5
4.50+0/-0.0083300/+0.514.003300/+0.5
5.003300/+0.514.503300/+0.5
5.503300/+0.515.003300/+0.5
6.003300/+0.515.503300/+0.5
6.503300/+0.516.003300/+0.5
7.003300/+0.518.003300/+0.5
7.503300/+0.520.003300/+0.5
8.00+0/-0.0093300/+0.522.003300/+0.5
8.503300/+0.524.003300/+0.5
9.003300/+0.525.00+0/-0.0133300/+0.5
9.503300/+0.528.003300/+0.5
10.003300/+0.530.003300/+0.5
32.00+0/-0.0163300/+0.5


General Tolerance for ground carbide rods

General tolerance for the h6 finished ground solid carbide rods
DiameterTolerance μmLengthToleranceStraightnessToleranceCircularityTolerances
3.0-6/0100.0+0.5/+1.04.00.07<3,02,0 micron
3.0-6.0-8/0100.0-165.0+1.0/+2.54.5-5.00.063,0- 6,02,5 micron
6.0-1.0-9/0165.0-335.0+1.0/+6.05.5-120.056,1-10,03,0 micron
10.0-18.0-11/012.50.0410,1-18,03,5 micron
18.0-30.0-13/018,1- 30,04,0 micron
30.0-50.0-16/030,1- 50,05,0 micron

General tolerance for the h5 finished ground solid carbide rods
DiameterTolerance μmLengthToleranceStraightnessToleranceCircularityTolerances
3.0-4/0100.0+0.5/+1.04.00.07<3,02,0 micron
3.0-6.0-5/0100.0-165.0+1.0/+2.54.5-5.00.063,0- 6,02,5 micron
6.0-1.0-6/0165.0-335.0+1.0/+6.05.5-120.056,1-10,03,0 micron
10.0-18.0-8/012.50.0410,1-18,03,5 micron
18.0-30.0-9/018,1- 30,04,0 micron
30.0-50.0-11/030,1- 50,05,0 micron

Our tungsten carbide rods:

  • 100% virgin material, no recycled material
  • Spray drying tower and HIP sintering furnace
  • Constant excellent quality
  • Large stock for all sizes, the regular products can be shipped in 3 days, and the special rods can be ground in one week.
  • 100% inspected before delivery. The inspection including raw material and dimension report will be sent you before delivery
  • Excellent grinding quality, Straightless and circularity could be 0.05 or 0.02.

Carbide grades


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China Finished Solid Ground Carbide Rods 8% Cobalt Kic 9.6 For Making PCB Drills supplier

Finished Solid Ground Carbide Rods 8% Cobalt Kic 9.6 For Making PCB Drills

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